In this post, you are correct. However, you were being a hypocrite when you agreed that they deserved to be oppressed and killed by the Empire.
I didn't agree that they deserved to be oppressed and killed. I simply stated that the empire was justified in the steps they took. Ulfric started an uprising that would have damaged the empire in it's recovering attempts to combat the Thalmor. The empire wanted to execute him to nip the problem at the root. Since he escaped, many more casualties were had. The Stormcloaks killed many imperials in the way that many imperials killed many stormcloaks. I walked up to a shack in the middle of no where and watched a random imperial and stormcloak fight to the death in front of some terrified woman. The Stormcloak won and began walking off into the distance shouting some racist comment about how my Breton has a filthy Mer mother. The Stormcloaks, while not entirely racist, have a lot of Nazi-like ideas about the way the country should be run as well as their status compared to others. The Nords oppressed and killed thousands of Foresworn for years. Even if I felt the Stormcloaks had some justification in their rebelion, I wouldn't side with them because they're complete jerks. They push people around, use racial slurs, drink without paying at bars, beat up townspeople, recruit unwilling people, openly defy neutrality, and they're selfish. There's no place for them in my empire, not if they are openly going to cause trouble and cause collateral damage and kill anyone who opposes their cause.